129397784

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{409}}^1\times {\mathrm{557}}^1$

素因数の和:1043

約数の個数: 32

約数和(自身を含む): 247082400

約数和(自身を除く): 117684616

約数列:

[1, 2, 4, 8, 71, 142, 284, 409, 557, 568, 818, 1114, 1636, 2228, 3272, 4456, 29039, 39547, 58078, 79094, 116156, 158188, 227813, 232312, 316376, 455626, 911252, 1822504, 16174723, 32349446, 64698892, 129397784]

約数ペア:

[(1, 129397784), (2, 64698892), (4, 32349446), (8, 16174723), (71, 1822504), (142, 911252), (284, 455626), (409, 316376), (557, 232312), (568, 227813), (818, 158188), (1114, 116156), (1636, 79094), (2228, 58078), (3272, 39547), (4456, 29039)]